<template>
  <div class="login">
    <el-form ref="loginRef" :model="loginForm" :rules="loginRules" class="login-form">
      <h3 class="title">登录</h3>
      <el-form-item prop="loginId">
        <el-input v-model="loginForm.loginId" type="text" size="large" auto-complete="off" placeholder="账号">
          <template #prefix
            ><el-icon><UserFilled /></el-icon
          ></template>
        </el-input>
      </el-form-item>
      <el-form-item prop="loginPwd">
        <el-input
          v-model="loginForm.loginPwd"
          type="password"
          size="large"
          auto-complete="off"
          placeholder="密码"
          @keyup.enter="handleLogin"
        >
          <template #prefix
            ><el-icon><Lock /></el-icon
          ></template>
        </el-input>
      </el-form-item>
      <el-form-item prop="code" v-if="captchaEnabled">
        <el-input
          v-model="loginForm.code"
          size="large"
          auto-complete="off"
          placeholder="验证码"
          style="width: 63%"
          @keyup.enter="handleLogin"
        >
          <template #prefix
            ><el-icon><PriceTag /></el-icon
          ></template>
        </el-input>
        <div class="login-code" v-html="codeUrl" @click="getCode"></div>
      </el-form-item>
      <el-form-item style="width: 100%">
        <el-button :loading="loading" size="large" type="primary" style="width: 100%" @click.prevent="handleLogin">
          <span v-if="!loading">登 录</span>
          <span v-else>登 录 中...</span>
        </el-button>
        <div style="float: right" v-if="register">
          <router-link class="link-type" :to="'/register'">立即注册</router-link>
        </div>
      </el-form-item>
    </el-form>
  </div>
</template>

<script setup lang="ts">
import { getCodeImg } from "@/api/login/loginApi";
import Cookies from "js-cookie";
import { encrypt } from "@/utils/jsencrypt";
import { useUserStore } from "@/stores/user";
import { useRoute, useRouter } from "vue-router";
import { getCurrentInstance, ref, watch } from "vue";
import { ElForm, ElInput, ElFormItem, ElButton, ElIcon } from "element-plus";

const userStore = useUserStore();
const route = useRoute();
const { proxy }: any = getCurrentInstance();

const emit = defineEmits(["logined"]);

const loginForm = ref({
  loginId: "",
  loginPwd: "",
  rememberMe: false,
  code: "",
  uuid: "",
});

const loginRules = {
  loginId: [{ required: true, trigger: "blur", message: "请输入您的账号" }],
  loginPwd: [{ required: true, trigger: "blur", message: "请输入您的密码" }],
  code: [{ required: true, trigger: "change", message: "请输入验证码" }],
};

const codeUrl = ref("");
const loading = ref(false);
// 验证码开关
const captchaEnabled = ref(true);
// 注册开关
const register = ref(false);
const redirect: any = ref(undefined);

watch(
  route,
  (newRoute) => {
    redirect.value = newRoute.query && newRoute.query.redirect;
  },
  { immediate: true }
);

function handleLogin() {
  proxy?.$refs.loginRef.validate((valid: any) => {
    if (valid) {
      loading.value = true;
      // 勾选了需要记住密码设置在 cookie 中设置记住用户名和密码
      if (loginForm.value.rememberMe) {
        Cookies.set("loginId", loginForm.value.loginId, { expires: 30 });
        Cookies.set("loginPwd", encrypt(loginForm.value.loginPwd), { expires: 30 });
        Cookies.set("rememberMe", String(loginForm.value.rememberMe), { expires: 30 });
      } else {
        // 否则移除
        Cookies.remove("loginId");
        Cookies.remove("loginPwd");
        Cookies.remove("rememberMe");
      }
      // 调用action的登录方法
      userStore
        .login(loginForm.value)
        .then(() => {
          // const query = route.query;
          // const otherQueryParams = Object.keys(query).reduce((acc, cur) => {
          //   if (cur !== "redirect") {
          //     acc[cur] = query[cur];
          //   }
          //   return acc;
          // }, {});
          // router.push({ path: redirect.value || "/", query: otherQueryParams });
          emit("logined");
        })
        .catch(() => {
          loading.value = false;
          // 重新获取验证码
          if (captchaEnabled.value) {
            getCode();
          }
        });
    }
  });
}

function getCode() {
  getCodeImg().then((data: any) => {
    captchaEnabled.value = !!data;
    codeUrl.value = data;
  });
}

getCode();
</script>

<style lang="scss" scoped>
.login {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100%;
  background-image: url("../assets/images/login-background.jpg");
  background-size: cover;
}
.title {
  margin: 0px auto 30px auto;
  text-align: center;
  color: #707070;
  line-height: normal;
}

.login-form {
  border-radius: 6px;
  background: #ffffff;
  width: 400px;
  padding: 25px 25px 5px 25px;
  .el-input {
    height: 40px;
    input {
      height: 40px;
    }
  }
  .input-icon {
    height: 39px;
    width: 14px;
    margin-left: 0px;
  }
}
.login-tip {
  font-size: 13px;
  text-align: center;
  color: #bfbfbf;
}
.login-code {
  width: 33%;
  height: 40px;
  float: right;
  img {
    cursor: pointer;
    vertical-align: middle;
  }
}
.el-login-footer {
  height: 40px;
  line-height: 40px;
  position: fixed;
  bottom: 0;
  width: 100%;
  text-align: center;
  color: #fff;
  font-family: Arial;
  font-size: 12px;
  letter-spacing: 1px;
}
.login-code-img {
  height: 40px;
  padding-left: 12px;
}
</style>
